list=["a","b","c","d","e","f"]

print(list)

print("list replace")
list[1:3]=["A","C"]
print(list)
print("list append")
list.append("g")
print(list)
print("del list[3:]")
del list[3:]
print(list)
#list copy
list1=["a","b","c"]
list1_copy=list1[:]
list1_copy[0]="1"
print(str(list1)+" "+str(list1_copy))
print(type(list1))